Indicator for garages, etc.



I. A. GIRANSTROIVI.

INDICATOR FOR GARAGES, ETC.

APPLICATION FILED APRIZI. 192I.

1,410,292. Patented M31- 21, 1922.

FIG.

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ATTEIENEYE UNITED STATES JOHN A. GBANSTROI, F BOSTON, IASBACHUBETTB. v

INDICATOR FOB GARAGEB, ETC.

a citizen of the United States, residin at Boston, in the county of Suffolk and tate of Massachusetts, have invented new and useful Improvements in Indicators for Garages, Etc., of which the following is a specification.

This invention has for its object to provide an indicator adapted to register the number of vehicles passing in op osite directions over a floor or track, an to separately register the number passing in each lof two opposite directions, the chief ob'ect being to provide an indicator organize to coodperate with wheels of vehicles entering an leaving a garage, to register the number of incoming and the number of outgoing` vehicles.

The invention is embodied in the improvements which I will now proceed to describe and claim.

Of the accompanying drawings forming a art of this specification,-

igure 1 is a top plan view of a portion of a garage floor provided with elements of indicating means embodyin the invention.

Figure 2 is a section on line 2-2 of Figure 1, showing diagrammatically elements completing the indicator.

Figure 3 is a section on line 3-3 of Figure 1.

The same reference characters indicate the same parts in all of the figures.

An element of my im roved indicator is provided by an elongate bar, preferably of iron or steel, having an elongated impact edge 12, adapted to be moved laterally by the impact of a vehicle wheel 13 moving crosswise of said edge. The bar is supported b means providing a horizontal axis para e1 with and spaced from the impact edge, said means being preferably embodied in trunnions 14, proJecting from opposite ends of the bar, and fixed bearings 15 in which said trunnions are journaled.

The bar has a weighted portion 12* normally holding the impact edge 12 in a central 'osition above said axis, as shown by full ines in Figure 2, said weighted portion being at the opposite side of the axis from the impact edge 12.

A housing-for said bar is provided having a slot 17 through which the impact ed e 12 normallyl rojects, and in which it is aterally mova le in either direction from its Bpecication of Letters Patent.

Application filed April 27, 1921.

Patented Mar. 21, 1922.

Serial lo. 465,057.

normal position, as indicated by dotted lines in Figure 2.

As here shown, the housing and slot are provided by a chamber 20, formed in a concrete floor or base 21, and by an opening in a metal plate 22, secured to said floor, the bearings 14 being supported by standards fixed to the bottom of said chamber. The chamber` 20 is extended below the axis of the bar and is formed to permit oscillation of the weighted portion 12.

It will now be seen that a wheel 13 moving in the direction of the arrow in Figure 2, will swing the impact edge to the ri hthand dotted line position, and that a w eel moving in the opposite direction will swing the impact edge to the left-hand dotted line position. The movements of the bar thus caused may be utilized in any suitable way to register the number of wheels passing over the bar.

In Figure 2 I have shown diagrammatically a pair of registers 25 and 26, which may be of any suitable construction adapted to be operated by the alternate closing and breaking of an electric circuit.

The housing is provided with two fixed electrodes 27 and 28, and the bar is provided below its axis with two electrodes 29 and 30.

The registers and electrodes are electrically connected as shown by the diagram of Figure 2, and the arrangement is such that when the impact edge 12 is moved to the right-hand position shown by Figure 1, the electrode 30 makes contact with the fixed electrode 28, and the register 26 is actuated. When the impact ed is moved to the lefthand osition, the e ectrode 29 makes contact with the fixed electrode 27, and the register 25 is actuated.

Any other suitable registers operable by the described movements of the bar may be employed.

I claim:

In an indicator of the character stated, in

ward either longitudinal slot edge by a wheel moving over said surface, und registering means operable by a movement of the impact edge in euch direction, to register vehicles passing in and out over said top surface.

'In testimony whereof I have affixed my JOHN A. GRANSTROM.

slgnature. 

